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Jim Davis as Joseph Cummins |
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Ian Keith as FBI Director Sinclair |
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George Travell as Rucca |
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Frederick Worlock as Hugo Stregel |
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Stanley Andrews as Mitchell (uncredited) |
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Hugh Beaumont as FBI Chemist (uncredited) |
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Ralph Dunn as Vic, Stregel's Thug (uncredited) |
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Byron Foulger as Pelly, Stregel's Henchman (uncredited) |
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Ian Wolfe as Gruning, Stregel's Henchman (uncredited) |
| Writing | Buddy Adler | Screenplay |
| Writing | Buddy Adler | Story |
| Writing | Julian Harmon | Screenplay |
| Writing | Julian Harmon | Story |
| Directing | Basil Wrangell | Director |